TY  - BOOK
AU  - Oyster,Carol K.
TI  - Groups: a user's guide 
SN  - 0070482454
AV  - HM716 O977G
PY  - 2000///
CY  - Boston, Mass.
PB  - McGraw-Hill
KW  - SOCIAL GROUPS
N1  - Includes bibliographical references and index
ER  -